{"product_id":"kohjinsha-sh6-replacement-battery-111v-4400mah-li-ion","title":"Kohjinsha SH6 Replacement Battery 11.1V 4400mAh NBATZZ04","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKohjinsha SH6 \/ SH8 \/ SR8 Series — 11.1V Li-ion Replacement Battery (NBATZZ04)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 4400mAh (48.84Wh) lithium-ion replacement battery for the Kohjinsha SH6, SH8, SR8, and L500X subnotebooks. It replaces OEM part numbers NBATZZ04 and NBP3A61. It fits the compact chassis common across these Japanese-market ultraportable models.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSH6, SH8, SR8, and L500X compatibility:\u003c\/strong\u003e\n    These models share the same battery bay dimensions, 11.1V power rail, and connector pinout. The BMS handshake protocol is consistent across the series, so the replacement communicates correctly with each system board without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the SH6 platform. The BMS reported state-of-charge correctly, charge termination triggered at full capacity, and the protection circuit tripped as expected under over-discharge conditions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the SH6:\u003c\/strong\u003e\n    After fitting this replacement, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. The SH6 BIOS uses a battery learn cycle to calibrate its fuel gauge IC against the new cell. Skipping this step leaves the health indicator showing inaccurate data from the previous battery's EEPROM values.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor immediately after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe SH6 BIOS stores historical charge data in EEPROM and carries it forward after a cell swap. A new cell with no charge history triggers a \"poor health\" or \"unknown battery\" flag because the firmware is comparing the new cell against degraded baseline data it recorded from the old one. This is not a fault with the replacement cell. Run one complete discharge-to-hibernate followed by an uninterrupted charge to 100% to force the learn cycle to reset against the new cell's actual capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down abruptly at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. At light load the cell voltage reads within range, but under combined CPU and display draw the voltage drops faster than the uncalibrated gauge predicts, triggering a hard shutdown before the displayed percentage reaches zero. It is not a defective cell. Complete two or three full discharge-to-hibernate and uninterrupted recharge cycles. After calibration, the gauge tracks the actual voltage cliff correctly and the premature shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410832425050,"sku":"BWCS-KH500HT-1","price":64.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410832457818,"sku":"BWCS-KH500HT-2","price":76.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410832490586,"sku":"BWCS-KH500HT-3","price":83.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KH500HT-big.webp?v=1779581286","url":"https:\/\/batteryweb.com\/products\/kohjinsha-sh6-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}